Adding upstream version 4.2.2.upstream/4.2.2

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 268 insertions, 0 deletions

diff --git a/epan/dissectors/packet-klm.c b/epan/dissectors/packet-klm.c
new file mode 100644
index 00000000..5d15bfd1
--- /dev/null
+++ b/epan/dissectors/packet-klm.c
@@ -0,0 +1,268 @@
+/* packet-klm.c    2001 Ronnie Sahlberg <See AUTHORS for email>
+ * Routines for klm dissection
+ *
+ * Wireshark - Network traffic analyzer
+ * By Gerald Combs <gerald@wireshark.org>
+ * Copyright 1998 Gerald Combs
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
+
+#include "config.h"
+
+#include "packet-nfs.h"
+
+void proto_register_klm(void);
+void proto_reg_handoff_klm(void);
+
+static int proto_klm = -1;
+static int hf_klm_procedure_v1 = -1;
+static int hf_klm_exclusive = -1;
+static int hf_klm_lock = -1;
+static int hf_klm_servername = -1;
+static int hf_klm_pid = -1;
+static int hf_klm_offset = -1;
+static int hf_klm_len = -1;
+static int hf_klm_stats = -1;
+static int hf_klm_holder = -1;
+static int hf_klm_block = -1;
+
+static gint ett_klm = -1;
+static gint ett_klm_lock = -1;
+static gint ett_klm_holder = -1;
+
+#define KLMPROC_TEST   1
+#define KLMPROC_LOCK   2
+#define KLMPROC_CANCEL 3
+#define KLMPROC_UNLOCK 4
+
+#define KLM_PROGRAM 100020
+
+static const value_string names_klm_stats[] =
+{
+#define KLM_GRANTED		0
+		{	KLM_GRANTED,	"KLM_GRANTED"	},
+#define KLM_DENIED		1
+		{	KLM_DENIED,	"KLM_DENIED"	},
+#define KLM_DENIED_NOLOCKS	2
+		{	KLM_DENIED_NOLOCKS,	"KLM_DENIED_NOLOCKS"	},
+#define KLM_WORKING		3
+		{	KLM_WORKING,	"KLM_WORKING"	},
+		{	0,		NULL }
+};
+
+static int
+dissect_holder(tvbuff_t *tvb, proto_tree *tree, int offset)
+{
+	proto_item* lock_item = NULL;
+	proto_tree* lock_tree = NULL;
+
+	lock_item = proto_tree_add_item(tree, hf_klm_holder, tvb,
+			offset, -1, ENC_NA);
+
+	lock_tree = proto_item_add_subtree(lock_item, ett_klm_holder);
+
+	offset = dissect_rpc_bool( tvb, lock_tree,
+			hf_klm_exclusive, offset);
+
+	offset = dissect_rpc_uint32(tvb, lock_tree,
+			hf_klm_pid, offset);
+
+	offset = dissect_rpc_uint32(tvb, lock_tree,
+			hf_klm_offset, offset);
+
+	offset = dissect_rpc_uint32(tvb, lock_tree,
+			hf_klm_len, offset);
+
+	return offset;
+}
+
+static int
+dissect_lock(tvbuff_t *tvb, packet_info* pinfo, proto_tree *tree, int offset, rpc_call_info_value *civ)
+{
+	proto_item* lock_item = NULL;
+	proto_tree* lock_tree = NULL;
+
+	lock_item = proto_tree_add_item(tree, hf_klm_lock, tvb,
+			offset, -1, ENC_NA);
+
+	lock_tree = proto_item_add_subtree(lock_item, ett_klm_lock);
+
+	offset = dissect_rpc_string(tvb, lock_tree,
+			hf_klm_servername, offset, NULL);
+
+	offset = dissect_nfs3_fh(tvb, offset, pinfo, lock_tree,"fh", NULL, civ);
+
+	offset = dissect_rpc_uint32(tvb, lock_tree,
+			hf_klm_pid, offset);
+
+	offset = dissect_rpc_uint32(tvb, lock_tree,
+			hf_klm_offset, offset);
+
+	offset = dissect_rpc_uint32(tvb, lock_tree,
+			hf_klm_len, offset);
+
+	return offset;
+}
+
+static int
+dissect_klm_unlock_call(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data)
+{
+	return dissect_lock(tvb, pinfo, tree, 0, (rpc_call_info_value*)data);
+}
+
+static int
+dissect_klm_stat_reply(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, void* data _U_)
+{
+	return dissect_rpc_uint32(tvb, tree, hf_klm_stats, 0);
+}
+
+static int
+dissect_klm_lock_call(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data)
+{
+	int offset = 0;
+	offset = dissect_rpc_bool( tvb, tree,
+			hf_klm_block, offset);
+
+	offset = dissect_rpc_bool( tvb, tree,
+			hf_klm_exclusive, offset);
+
+	offset = dissect_lock(tvb, pinfo, tree, offset, (rpc_call_info_value*)data);
+
+	return offset;
+}
+
+static int
+dissect_klm_test_reply(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, void* data _U_)
+{
+	gint32	stats;
+	int offset = 0;
+
+	stats = tvb_get_ntohl(tvb, offset);
+
+	offset = dissect_rpc_uint32(tvb, tree,
+			hf_klm_stats, offset);
+
+	if (stats == KLM_DENIED) {
+		offset = dissect_holder(tvb, tree, offset);
+	}
+
+	return offset;
+}
+
+static int
+dissect_klm_test_call(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data)
+{
+	int offset = 0;
+	offset = dissect_rpc_bool( tvb, tree,
+			hf_klm_exclusive, offset);
+
+	offset = dissect_lock(tvb, pinfo, tree, offset, (rpc_call_info_value*)data);
+
+	return offset;
+}
+
+
+/* proc number, "proc name", dissect_request, dissect_reply */
+static const vsff klm1_proc[] = {
+	{ KLMPROC_TEST,	"TEST",
+		dissect_klm_test_call,	dissect_klm_test_reply },
+	{ KLMPROC_LOCK,	"LOCK",
+		dissect_klm_lock_call,	dissect_klm_stat_reply },
+	{ KLMPROC_CANCEL,	"CANCEL",
+		dissect_klm_lock_call,	dissect_klm_stat_reply },
+	{ KLMPROC_UNLOCK,	"UNLOCK",
+		dissect_klm_unlock_call,	dissect_klm_stat_reply },
+	{ 0,	NULL,		NULL,				NULL }
+};
+static const rpc_prog_vers_info klm_vers_info[] = {
+	{ 1, klm1_proc, &hf_klm_procedure_v1 },
+};
+static const value_string klm1_proc_vals[] = {
+	{ KLMPROC_TEST,	  "TEST" },
+	{ KLMPROC_LOCK,	  "LOCK" },
+	{ KLMPROC_CANCEL, "CANCEL" },
+	{ KLMPROC_UNLOCK, "UNLOCK" },
+	{ 0,	NULL}
+};
+
+void
+proto_register_klm(void)
+{
+	static struct true_false_string tfs_exclusive = { "Exclusive", "Not exclusive" };
+	static struct true_false_string tfs_block = { "Block", "Do not block" };
+
+	static hf_register_info hf[] = {
+		{ &hf_klm_procedure_v1, {
+			"V1 Procedure", "klm.procedure_v1", FT_UINT32, BASE_DEC,
+			VALS(klm1_proc_vals), 0, NULL, HFILL }},
+		{ &hf_klm_exclusive, {
+			"exclusive", "klm.exclusive", FT_BOOLEAN, BASE_NONE,
+			TFS(&tfs_exclusive), 0x0, "Exclusive lock", HFILL }},
+
+		{ &hf_klm_lock, {
+			"lock", "klm.lock", FT_NONE, BASE_NONE,
+			NULL, 0, "KLM lock structure", HFILL }},
+
+		{ &hf_klm_servername, {
+			"server name", "klm.servername", FT_STRING, BASE_NONE,
+			NULL, 0, NULL, HFILL }},
+
+		{ &hf_klm_pid, {
+			"pid", "klm.pid", FT_UINT32, BASE_DEC,
+			NULL, 0, "ProcessID", HFILL }},
+
+		{ &hf_klm_offset, {
+			"offset", "klm.offset", FT_UINT32, BASE_DEC,
+			NULL, 0, "File offset", HFILL }},
+
+		{ &hf_klm_len, {
+			"length", "klm.len", FT_UINT32, BASE_DEC,
+			NULL, 0, "Length of lock region", HFILL }},
+
+		{ &hf_klm_stats, {
+			"stats", "klm.stats", FT_UINT32, BASE_DEC,
+			VALS(names_klm_stats), 0, NULL, HFILL }},
+
+		{ &hf_klm_holder, {
+			"holder", "klm.holder", FT_NONE, BASE_NONE,
+			NULL, 0, "KLM lock holder", HFILL }},
+
+		{ &hf_klm_block, {
+			"block", "klm.block", FT_BOOLEAN, BASE_NONE,
+			TFS(&tfs_block), 0x0, NULL, HFILL }},
+
+	};
+
+	static gint *ett[] = {
+		&ett_klm,
+		&ett_klm_lock,
+		&ett_klm_holder,
+	};
+
+	proto_klm = proto_register_protocol("Kernel Lock Manager",
+	    "KLM", "klm");
+	proto_register_field_array(proto_klm, hf, array_length(hf));
+	proto_register_subtree_array(ett, array_length(ett));
+}
+
+void
+proto_reg_handoff_klm(void)
+{
+	/* Register the protocol as RPC */
+	rpc_init_prog(proto_klm, KLM_PROGRAM, ett_klm,
+	    G_N_ELEMENTS(klm_vers_info), klm_vers_info);
+}
+
+/*
+ * Editor modelines  -  https://www.wireshark.org/tools/modelines.html
+ *
+ * Local variables:
+ * c-basic-offset: 8
+ * tab-width: 8
+ * indent-tabs-mode: t
+ * End:
+ *
+ * vi: set shiftwidth=8 tabstop=8 noexpandtab:
+ * :indentSize=8:tabSize=8:noTabs=false:
+ */